perennialN. America Native

Scarlet Beardtongue

Penstemon barbatus

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Essentials

At a Glance

Plant Type

Perennial

Height

24 inches

Width

18 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8, 9

Water

Low to moderate

Humidity

Average

Lifespan

Perennial

Native To

Western North America

Toxicity

Non-toxic to humans and pets

The Story

Plant Bio

Penstemon barbatus, commonly known as Bearded Tongue, is a perennial plant valued for its vibrant tubular flowers and ability to attract pollinators. This species is known for its drought tolerance and is favored in rock gardens and xeriscapes.

Bloom Period:

EarlyLate

Uses & Benefits:

Penstemon barbatus offers vibrant spikes of red flowers that attract hummingbirds and butterflies, adding lively color to gardens.

Its drought tolerance makes it ideal for water-wise landscaping, reducing irrigation needs.

Provides nectar for pollinators and supports local biodiversity.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Tuck seeds into well-draining soil in early spring for best germination.
Mist cuttings lightly to maintain humidity and encourage rooting.
Plant in full sun for optimal growth and flowering.
Water regularly but avoid waterlogging to prevent root rot.
Fertilize with a balanced, slow-release fertilizer in spring and summer.
Prune after flowering to promote bushy growth and remove dead stems.

Pro Tip

Ensure excellent drainage to prevent root rot and promote vigorous flowering.

Keep It Thriving

Care Guide

Do

Water deeply during dry spells 🌱
Deadhead spent flowers to encourage more blooms
Apply mulch to retain soil moisture

Don't

Overwater to avoid root rot ❌
Neglect pruning after flowering ❌
Use heavy, clay soil without amendment ❌

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Deadhead
Propagate
Prune
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Bold, colorful border plantWildflower meadow accentDrought-tolerant garden feature

Companion Plants

Salvia Lavender Coreopsis Echinacea Gaillardia

Multiply

Propagation Methods

Good to Know

Common Questions

Scarlet Beardtongue questions

What zones can Scarlet Beardtongue grow in?

Scarlet Beardtongue is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Scarlet Beardtongue deer resistant?

Yes — Scarlet Beardtongue is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Scarlet Beardtongue bloom?

Scarlet Beardtongue typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Scarlet Beardtongue need full sun?

Scarlet Beardtongue does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Scarlet Beardtongue drought tolerant?

Yes — once established (usually after the first full season), Scarlet Beardtongue handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.